2HA/2HB
1-4-21
(1) No image appears (entirely white).
(2) No image appears (entirely black).
Copy example
Causes
Check procedures/corrective measures
No trans-
fer charg-
ing.
The connector terminals
of the high-voltage PWB
make poor contact.
Reinsert the connector. Also check for continuity within the
connector cable. If none, remedy or replace the cable.
Defective engine PWB.
Replace the engine PWB and check for correct operation.
Defective high-voltage
PWB.
Replace the high voltage PWB and check for correct opera-
tion.
No LSU
laser is
output.
Defective laser scanner
unit.
Replace the laser scanner unit (see page 1-5-19).
Defective main PWB.
Replace the main PWB and check for correct operation.
No devel-
oping bias
is output.
The connector terminals
of the high-voltage PWB
make poor contact.
Reinsert the connector. Also check for continuity within the
connector cable. If none, remedy or replace the cable.
Defective engine PWB.
Replace the engine PWB and check for correct operation.
Defective high-voltage
PWB.
Replace the high voltage PWB and check for correct opera-
tion.
Copy example
Causes
Check procedures/corrective measures
No main
charging.
Broken main charger
wire.
Replace the main charger unit (see page 1-5-25).
Leaking main charger
housing.
Clean the main charger wire, grid and shield.
The connector terminals
of the high-voltage PWB
make poor contact.
Reinsert the connector. Also check for continuity within the
connector cable. If none, remedy or replace the cable.
Defective engine PWB.
Check if YC9-5 on the engine PWB goes low when mainte-
nance item U100 is run. If not, replace the engine PWB.
Defective high-voltage
PWB.
Check if main charging takes place when YC1-12 on the
high-voltage PWB goes low while maintenance item U100 is
run. If not, replace the high-voltage PWB.
Exposure
lamp fails
to light.
The connector terminals
of the exposure lamp
make poor contact.
Reinsert the connector. Also check for continuity within the
connector cable. If none, remedy or replace the cable.
Defective inverter PWB.
Check if the exposure lamp lights when YC1-1 and 1-6 on
the inverter PWB go low while maintenance item U061 is run.
If not, replace the inverter PWB.
Defective engine PWB.
Check if YC17-1 and YC17-6 on the engine PWB goes low
when maintenance item U061 is run. If not, replace the
engine PWB.
Summary of Contents for d-Copia 1600
Page 1: ...SERVICE MANUAL Published in October 2005 842HB110 First Edition d Copia 1600 d Copia 2000...
Page 3: ...Revision history Revision Date Replaced pages Remarks...
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Page 10: ...This page is intentionally left blank...
Page 14: ...2HA 2HB 1 4 30 This page is intentionally left blank...
Page 20: ...2HA 2HB 1 4 30 This page is intentionally left blank...
Page 126: ...2HA 2HB 1 4 30 This page is intentionally left blank...
Page 162: ...2HA 2HB 1 4 30 This page is intentionally left blank...
Page 180: ...2HA 2HB 1 4 30 This page is intentionally left blank...
Page 213: ...INSTALLATION GUIDE FOR THE 300 SHEET CASSETTE...
Page 220: ...INSTALLATION GUIDE FOR THE DOCUMENT PROCESSOR...
Page 231: ...INSTALLATION GUIDE FOR THE DUPLEX UNIT...
Page 239: ...INSTALLATION GUIDE FOR THE Printing System X...
Page 242: ......